Testing set



Jan. v1925. 1,522,694

L. L. NEAL TESTING SET Filed Oct. 11, 1921 2 Sheets-Sheet 2 Patented Jan. 13, 1925.

LESTER L. NEAL, OF HOQUIAM, WASHING-TON.

TESTING SET.

Application filed October 11, 1921.

To all whom it may concern:

Be it known that I, LESTER L. NEAL, a citizen of the United States, residing at Hoquiam, in the county of Grays Harbor and State of Washington, have invented a new and useful Testing Set, of which the following is a specification.

This invention aims to provide a simple but efficient means whereby battery cells of different sizes and shapes may be tested readily and to provide a simple means whereby electrical lamps may be tested.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings z- Figure 1 shows in plan, a device constructed in accordance with the invention; Figure 2 is a bottom plan; Figure 3 is a section on the line 3-3 of Figure 1; Figure 1 is a section on the line 44 of Figure 2; and Figure 5 is a diagram illustrating the circuits.

In carrying out the invention there is provided a frame, denoted generally by the letter F, and embodying a box-like casing 1, open at the rear, the casing being reinforced, if desired, by a backingfplate 2, located within the casing, and in engagement with the forward wall thereof. Supports 3 and a are secured to the frame F adjacent to the ends thereof and extend transversely of the frame. Guide rods 5 are carried by the supports 3 and at and arespaced from the backing plate 2. A terminal 6 of angular form extends through the outer wall of the casing 1 and through the backing plate 2, the terminal being mounted in the support 3. A slide 7 is mounted for reciprocation on the guide rods 5 and includes tubular bearings 8, supporting the slide immediately on the guide rods A slide or movable switch member 7 is provided with a wiper 9. The slide 7 carries a terminal 10 mounted to move in a Serial No. 508,950.

slot 11 formed in the outer wall of the easing 1 and in the backing plate 2. A retractile spring 12 is connected at one end to the slide 7 and at its other end to the support 3.

Sockets 14 are mounted in the outer wall of the casing 1 and in the backing plate 2 and are disposed in a line, parallel to the guide rods 5. The sockets 1 1 are adapted to receive electric lamps 15 of different voltages. Contact members 16 are connected to the sockets 14 and to the backing plate 2, the contact members being adapted to cooperate with the wiper 9 of the slide 7 One end of a conductor 17, located within the frame F, is connected to the terminal 6, the sockets 14 being connected electrically to the conductor 17. p

In practical operation, as shown in Figure 1, a battery 18 is placed against the terminal 6, the pole of the battery being engaged by the terminal 10, the terminal 10 being held in i 7:

contact with the spring 12. When the terminal 10 is so positioned as to bear on the pole of the battery,

pole of the battery, by the the slide 7, and consequently the wiper 9 are so positioned that they will contact with one of the members 16 and'thus, the lamp 15 which is of the proper voltagefor testing the battery, will be lighted, it being clear that the slide 7 may be moved along the guide rods 5, to accommodate batteries'of different sizes, the wiper 9 coming into contact with the appropriate member 16.

When the device is in use, as above, described, the circuit includes the battery 18, the terminal 6, the conductor 17, and appropriate lamp 15,the proper contact inember 16, the wiper 9, and the terminal 10 which is carried by the slide 7 and is in electrical engagement with the wiper 9.

A means is provided whereby a flat battery may be tested, and with this end in view, supports 19 and 20 are mounted on the backing plate 2 of the frame, an angular terminal 21 being mounted on the frame F and being mounted in the support 19. The supports 19 and 20 carry guide rods 22, preferably disposed at right angles to the guide rods 5. A slide 23 is mounted for reciprocation on the guide rods 5 and includes a wiper 24. The slide 23 carries a terminal 28, in electrical engagement with the wiper 24L, the terminal 28 being mounted to move in a slot 29 formed in the outer wall of the casing 1 and in the backing and are connected at 45, electrically, with the sockets 26.

A conductor 31 leads from the terminal 21 to the sockets 26.

It is obvious that a flat battery maybe engaged with the terminals 21 and 28, and

that, by moving the slide 23, batteries of different sizes may be tested in the way hereinbefore set forth, the slide moving alongthe guide rods 22, and the wiper 2- engaging the proper contact member i), to ciifect a lighting of the. appropriate lamp.

Should it be desired to test lamp-s, rather than batteries, recourse is had to a structure which will now be described.

A socket 32 is carried by the members i and 2. A slot 33 is formed in the backing plate 2. A battery 34 is located'in the slot 33. Spring clips 35 and 36 are secured to the backing plate 2, the clips being adapted to engage the battery 34 electrically. A spring tongue 37 is connected tothe clip 36 and extends into the socket 32, as shown in Figure at. A conductor 38 leads between the socket 82 and the clip In practical operation, the lamp 39 which to be tested, is mounted in the socket 32, thereby completing a circuit comprising the tongue 37, the clip clip 35, the conductor 38, the socket 32 and the lamp 39, the lamp being lighted.

hat is claimed is 1. In a battery tester, a frame, a fixed terminal projecting beyond the forward surface of the frame, a guide, means for mounting the guide on the rear surface of the frame in spaced relation to the rear surface of the frame, a slide located behind the frame, and mounted to reciprocate on the guide, contacts on the rear surface of the frame, a wiper located behind the frame 36, the battery 34, the I ing in electrical connection with the wiper, V 1: 55.

a conductor connecting the fixed terminal with the contacts, andlamp-holding means individual to'the contacts. V

2. In a battery tester, a frame, supports mounted on the rear surface of the frame a guide extended between the supports, means for holding one support on the frame, a

fixed terminal projecting beyond the fore ward surface of the frame and engaging the other support to hold it onthe frame, con- I tacts on the rear surface of theframe, lampholding means individual to the contacts and accessible from the front of the frame, a slide behind theframe and mounted to reciprocate on the guide, a wiper carried by the slide and adapted to cooperate with the. 7

contacts a movable terminalprojecting beyond the forward surface of the frame and carried by the slide, said terminal being in' electrical connection with the wiper, and a conductor joining the contacts with the fixed terminal.

3. In a battery tester a frame, a iiixed terminal carried by the frame insulating lar bearings carried by the slide and projecting beyond the. slide, the bearings being mounted for reciprocation on the rods, a wiper on the slide, a movable terminal car tried by the slide and engaging the wiper,

contacts on the frame and cooperating with the wiper, lamp-holdmg means individual to the contacts, and a conductor joiningthc contacts with the fixed terminal.

In testimony that I claim the foregoing supports on the frame, parallel rods mounted in the supports, an insulating slide, tuba- 

